Carbureter.



J.. L. www.

l CARBURETER.

APPLlCATlGN HLED JULY 22. 1916.

Patented Oct. 2, 1917.

JAMES L. Wannes, (rememorar, WASHINGTON.

,e .i w. Unseen..

l Leaaose.

To all *whom it mag/:concern: -Be' it` known thatl, J a-L. WALKER, a

citizen of the United Staes", residin .at National,"in the county ofPierce and tate of Washington, have invented certain new and usefulImprovements in. Carbureterl'; and ll do hereby declarelthe followingtobe a'full,

clear, vand exactdescription ofthe invenw tioinsuch as will enableothers'skilled in ,the

art to which it appertains tomake and' use the same, referenceI beinghad to the accompanying drawings, and to the letters and figures ofreference marked thereon, which form a part of this specification.

This invention relates to new and useful improvements in carbureters andconsists in the provision of a simple and eilicient de-i vice of'thisnature so constructed as to enable the same to be run upon a heavy fuel,

such as kerosene and distillates and so constructed as to be of easyoperation.

My invention comprises various details 'of construction, combinationsand arrangements of parts, which will be hereinafter fully described,shown in the accompanying drawing and then specifically defined in theappended claims. A

I illustrate my invention in the .accom-y panying drawing, -in which Ihave shown a' of the ioats and receive threaded portions of the rod 6VwhichY has a hand wheel 6x fastened at one end, whereby the rod may beturned to cause an adjustment intermediate the sameand .the float. Thebolts 7 serve not only to hold the oat from turning axially but to guidethe same in its vertical movements within the chamber 2. A coupling 9,made preferably of mag;

netic metal, has threaded connection with.

an opening in the bottom of the float chamber and has a laterallyextending duct 9* to which the coupling 10 is connected. The

lower end of the coupling 9 has a valve seat 9 and a rod 6 passesthrough the coupling nSpeedmtion of Letters'atent. applipauonnied July22, 1916. srial No. 110,734.

A float 5 Patented Oct. 2, '13917.

9 and is provided for theupurpose of unseating the ball valve 8whichnofrmally 1s held to its seat, formed at the lower end ofthecoupling 9 by'magnetic attraction and` may be unseated by pressureappliedyto the rod 6. A gasolene"`supply pipe, designatedV by numeral11, is connected to the union-11.x

landforms means whereby fuel from any suitable source of supply may`pass to the interior of the coupling 9, thence .through thecoupling 10,through the duct l'foimed. inthe wally ofthe member 13. Said mem? ber 13is fitted within the body of the cal"- bureter 1, which latter isprovided with 'air openings 18 and the member has similar air openings18, formed in the bottom thereof..

yThe ehambered portion of the member at its lower end has interiorthreads to receive the .adjusting plug 19, which latter has a duct 19Xthrough thei'wall thereof, leading into anannular recess19, forming achain ber in which the fuel enters before passing into the interior ofthe plug 19. The upper end 'of the plug 19 has an opening 19a whichiscontrolled by the needle valve 16", and

16 designates a piston secured to the rod '.15

and is movable therewith inside of vth chambered portion of the member13.

4 A sleeve or piston 1,2is movable within the carburetor 1 and has anopening,the walls of which incline from the central contracted portion12 through which contracted portion the member 13 passes. A wire 20 isbent bail-shaped and ha's its ends fitted into the sleeve and passesthrough apertures'18.'

in the bottom of the member 13 and is bent about the plug 19, and whichwire is pro* vided for the purpose of limiting the upper movement of thesleeve and thereby avoid injury to the needle valve and other delicateparts of the device and also serving as-a means for holding the sleevedown, if desired, in startin the carbureter. Secured to the pistonor seeve 12 are the spider arms 17 which support the mixing? plate 14, thelatter being centrally apertured for the reoeption` of the stem 15,having a loose connection therewith, so that it may shift but is adaptedto be raised and lowered in the plate 14.- and sleeve 12. The plug 19 isadjustable within the lower end of the member 13 and is provided with adrain cock 21 in the lower end thereof.

-Mounted within theexhausted chamber 3 is a small lioat chamber 22, theupper'end of which Vhas an opening 22,I the -wall'- of which forms avalve seat for the tapering valve t28 at the upper the 'float 23. A,pipe 29 leads freni the opening in the top of 4the chamber 22 and leadsto and communicates with e three-Way union 25 from which t a pipe-25leads the interior of the carburetor chamber l., andy@ designates a pipeleading from the threes/ay union and communicates with thev gasolenetank 24, the pipe 28 being 4providin ed with arent 26 to theati'nosphere.

` t water pipe 2'? leads through the -top of Ithe heatingchamber 3 and.coils about the lloat chamber 22 and communicates with the opening atthe lower end of said chambei' 22. An exhaust pipe 30 communicates withone end o the exhaust chamber 3 and an exit exhaust pipe 3l, end' oitvsaid chamber 3.

ln operation, when. a slight vacuum is formed in the carbureterabove thesleeve i12, the latter isiraised according to the speed of the motorandwillpermit air to enter thev Carburetor landv in its movement theneedle valveis lifted, admitting fuel according to the quantity 'ot' airadmitted. The fuel y passes 4out through the top of the jet and .comesin Contact with the lower surface of the mixing plate lll. Air enteringbetween 'i mixture and downwardl tor a rich mixture,I

the needle yalvebeing tapered for the different speeds. The fuel levelvmay be adjusted by screwing' the' rod 6 up or down through the float 5,the latter being held from turning by means of the bolts. The waterpassing through the pipe enters the heating 'chamber 3 and into thetloat chamber 22, causing the'lloat 23 therein to rise, making itimpossible fior water to pass through the float chamber 22 but, as thewater becomes heated,'steam will be generatedand 'force the Waterdownward in the float chamber and the-float will lower and force thesteam outl at the opening in the top thereof, and the steam passesthrough the pipe 29, coiled about the float chamber and .thence passesthrough the threewvay union 25 and enters .i in a superheated conditionthe upper porso tion ol the 'carbureterchamben An automatic piming'device is provided through the medium ot the pipe 2. it the starting ofthe 'motor there no steam and to and coi'iniiunicates withy leads from.the exit y ture at one end, a stem the ad usting 4 shannon water willnot )ass 'throughthc chamber '22 andthere will he a suction through the65 pipe Q8, drawing gasolene `from the tank 24 and afterward air throughthe vent 2o which, mixing therewith, will be drawn into the carburcterthrough the pipe 25K. When the apparatus is in operation and steamIis7ol produced by the water being heated by the exhaust :from theengine, the suction will 'be overcoineby the steam and the feeding ofthe gasolene will stop, thus priming the carbureter only when there isno steam to assist in yaporizing the heavy fuel.

llf hat l claim toibe new is:- l,I A' carbureter apparatus comprisingr acarbureter/chamber provided with an air inlet and air valve recessed inone face and mounted insaid chamber and adapted to be lifted from itsseat by the suction of an enrine,a hollow member tapering at oneend andagainst which saidy valve is designed to seat, a hollow plug with aneedle valve aperfixed to said valve,

a plunger and a needle valve upon said stem, said plunger being arrangedfor movement in said hollow member and said needle `valve adapted toseat in said aperture, said hollow member having a fuel outlet abovesaid plungenvtixe wall of the plug being provided with an apertureleading into an annular space. intermediate the wall ol the plug and thewall of the chaml'icred portion 95 of said hollow member, the wall olthe lat# ter being provided with an inlet ductv and. `stop means securedto said air valve and movable over said hollow plug.

2, A carbureterV apparatus col'uprisng Aa 10o carburetor chamlm'provided with airair valve recessed ony its under face, the wall of therecess being tapering, said valve adapted to be actuated by the suctionof an engine, a hollow member tapering at one end and forming a seat.for said vulve` a hollow plug with a needle valve aperture in one endand mounted within the chambered portion of saidhollow member, a bracketsecured to said valve, a stem secured to said 11o bracket: a plunger anda needle valve upon said stem, said plunger movable within said member,land the needle valve'in the aper- Ature in said hollow plu-g, Vsaidmember having a fuel outlet above said plunger, the wall of the latterbeing provided with a port communicating with an annular space bctwecnthe outer wall ol the plug and the wallet the chamber of the hollowmember.y

ln testimony whereof l hereunto aix my signature in presencoi'jof twowitnesses',v

n Jai/ins 'n watnnn.

Witnesses Loon; il. Rumeur, Ronin emanen.

